Fixing device that reduces generation of ultra fine particles and image forming apparatus including the same

Abstract

A fixing device according to one aspect of the disclosure includes a heat source, a fixing member, and a pressure member. The heat source generates infrared. The fixing member is heated from an inner circumferential surface side by the heat source. The pressure member forms a nip area in pressure contact with the fixing member. The nip area sandwiches a recording medium carrying an unfixed toner image between the fixing member and the pressure member. The nip area fuses the unfixed toner image to the recording medium. The fixing member has an inner circumferential surface, and the inner circumferential surface forms a heat absorbing portion that absorbs the infrared generated from the heat source. The heat absorbing portion is a polycondensate whose starting materials are silica and monosilane compounds. The heat absorbing portion has a fired film made of an organic-inorganic hybrid coating using an alcohol solution as a solvent.

What is claimed is: 
     
         1 . A fixing device, comprising:
 a heat source that generates infrared;   a fixing member heated from an inner circumferential surface side by the heat source; and   a pressure member that forms a nip area in pressure contact with the fixing member, the nip area sandwiching a recording medium carrying an unfixed toner image between the fixing member and the pressure member, the nip area fusing the unfixed toner image to the recording medium,   wherein the fixing member has an inner circumferential surface, and the inner circumferential surface forms a heat absorbing portion that absorbs the infrared generated from the heat source, the heat absorbing portion being a polycondensate whose starting materials are silica and monosilane compounds, the heat absorbing portion having a fired film made of an organic-inorganic hybrid coating using an alcohol solution as a solvent.   
     
     
         2 . The fixing device according to  claim 1 ,
 wherein the heat absorbing portion has a film thickness of 10 μm to 30 μm.   
     
     
         3 . The fixing device according to  claim 1 ,
 wherein the heat absorbing portion has a firing temperature of 200° C. to 450° C.   
     
     
         4 . The fixing device according to  claim 1 ,
 wherein the fixing member includes a fixing roller.   
     
     
         5 . The fixing device according to  claim 1 ,
 wherein the fixing member includes a fixing belt.   
     
     
         6 . An image forming apparatus comprising
 the fixing device according to  claim 1 .